How To Configure Windows time source Server

When you want to change the server time source or you get error eventID 12, just type at command prompt as Administrator:

w32tm /config /manualpeerlist:server,0x8, /syncfromflags:manual /update

where server is the name of the time source that you want to configure, and then press ENTER.

Restart the Windows Time service

net stop w32time & net start w32time

Resynchronize the Windows Time service client with the time source peer.

w32tm /resync

To Check configuration :

w32tm /query /configuration
w32tm /query /status
Time /T 

Microsoft has issued hotfix that is a wizard which set the time server automatically according to your NTP server preferences (Like:
you can download is it here

To set time service on server manually you can follow this link to Microsoft :

Good Luck

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